Publisher's Synopsis
Excerpt from Geology and Quicksilver Deposits of the New Almaden District, Santa Clara County, California
The descriptions of the various mines of the district are intended chie?y to be of aid to those interested in their fur ther development, but the descriptions also contain details of geology and ore controls that will be of service to those desir ing a thorough understanding of the deposits. Following each description is a section devoted to a comprehensive analysis of the possibilities for further development. In this section we have considered the known sources of submarginal ore and have also tried to indicate where ore of high grade might per haps be obtained. As mining in the district. Was carried on during the last 40 years without adequate exploration and development, the amount of submarginal ore that is readily accessible is small. On the other hand, the geologic structures in some of the mines, when considered along with the factors responsible for the localization of the rich ore bodies, indicate that intelligent and aggressive development, supported by ade quate funds, can be expected to reveal new ore bodies. Such ore bodies, if as rich as those previously mined, would be minable even during periods when the value of quicksilver is low.
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